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High‐energy spin waves in bcc iron

 

作者: T. G. Perring,   A. T. Boothroyd,   D. McK. Paul,   A. D. Taylor,   R. Osborn,   R. J. Newport,   J. A. Blackman,   H. A. Mook,  

 

期刊: Journal of Applied Physics  （AIP Available online 1991）
卷期: Volume 69, issue 8  

页码: 6219-6221

 

ISSN:0021-8979

 

年代: 1991

 

DOI:10.1063/1.348814

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The dispersion relation of the spin‐wave excitations in bcc iron has been studied by neutron inelastic scattering at the spallation neutron source ISIS. Magnetic intensity was followed up to 550 meV along the [100] direction. The general form of the dispersion curve is in qualitative agreement with that calculated from a spin‐polarized band model, and in particular the prediction of propagating modes extending above 300 meV has been confirmed.

 

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